Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 682 · 40 questions

What you do (Bounce, bounce, see): 1. An adult cuts a window near the top on one side of the carton and near the bottom on the other. 2. Tape one mirror at 45° behind each window, the two mirrors facing each other. 3. Look into the bottom window and adjust the mirrors until the view is clear. 4. Peep over a table or wall — never point it at the Sun.

1. 1.🧺 Which of these is needed for the periscope? (a) a pencil (b) a magnet (c) yeast (d) a balloon
2. 2.🧺 Which of these is not needed for the periscope? (a) yeast (b) an empty juice carton (c) sticky tape (d) a ruler
3. 3.🛟 You must never point a periscope or a mirror at ___. (a) a tree (b) the Sun (c) a wall (d) a friend’s toy
4. 4.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a pencil (b) two small mirrors (c) an empty juice carton (d) turmeric powder
5. 5.True or false: still clear water reflects light well. (a) True (b) False
6. 6.🔭 How many mirrors does a simple periscope use?
7. 7.True or false: a dull brick reflects light well. (a) True (b) False
8. 8.🔍 Which is the odd one out? (a) aluminium foil (b) still clear water (c) a rough wooden board (d) a shiny steel plate
9. 9.🔭 Which of these reflects light poorly? (a) still clear water (b) black cloth (c) a shiny steel plate (d) a mirror
10. 10.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same carton”? (a) we measure it (b) we keep it the same (c) we change it
11. 11.🔭 Which of these reflects light poorly? (a) still clear water (b) a mirror (c) aluminium foil (d) dark soil
12. 12.🧺 Which of these is needed for the periscope? (a) two small mirrors (b) a balloon (c) turmeric powder (d) a magnet
13. 13.🛟 Who should cut the holes in the juice carton? (a) a grown-up (b) nobody needs to (c) a friend who is running (d) the youngest child
14. 14.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the same carton (b) the angle of the mirrors (c) how clear the view is (d) the same light
15. 15.🔭 Does still clear water reflect light well or poorly? (a) reflects light well (b) reflects light poorly
16. 16.🔮 Predict: you cover the top mirror with paper. What do you see? (a) only darkness (b) a rainbow (c) a brighter view (d) two pictures
17. 17.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the angle of the mirrors (b) how clear the view is (c) the same mirrors
18. 18.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) True (b) False
19. 19.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
20. 20.True or false: a rough wooden board reflects light poorly. (a) True (b) False
21. 21.True or false: a rough wooden board reflects light well. (a) True (b) False
22. 22.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) flipped left to right (b) much bigger (c) in colour (d) upside down only
23. 23.🧺 Do we need turmeric powder for the periscope? (a) not needed (b) needed
24. 24.🧺 Which of these is needed for the periscope? (a) vinegar (b) a magnet (c) a battery cell (d) an empty juice carton
25. 25.🔭 Does a shiny steel plate reflect light well or poorly? (a) reflects light well (b) reflects light poorly
26. 26.🧺 Do we need a magnet for the periscope? (a) not needed (b) needed
27. 27.True or false: a shiny steel plate reflects light well. (a) False (b) True
28. 28.🔍 Which is the odd one out? (a) aluminium foil (b) a mirror (c) dark soil (d) a shiny steel plate
29. 29.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is what we measure? (a) how clear the view is (b) the same light (c) the object we look at (d) the angle of the mirrors
30. 30.🔭 Does aluminium foil reflect light well or poorly? (a) reflects light poorly (b) reflects light well
31. 31.🔭 What does a periscope let you do? (a) hear far sounds (b) see germs (c) see over a wall (d) see in the dark
32. 32.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
33. 33.🔭 How many times does light bounce off a mirror in a simple periscope?
34. 34.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) sticky tape (b) yeast (c) a ruler (d) two small mirrors
35. 35.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) taller walls (c) nothing at all (d) only short walls
36. 36.True or false: sticky tape is needed for the periscope. (a) True (b) False
37. 37.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is what we measure. (a) True (b) False
38. 38.🔭 Which of these reflects light well? (a) aluminium foil (b) dark soil (c) black cloth (d) a rough wooden board
39. 39.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) vinegar (b) a pencil (c) a ruler (d) an empty juice carton
40. 40.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is kept the same? (a) the object we look at (b) the angle of the mirrors (c) how clear the view is

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